Beater-roll



G. L. BIDWELL.

BEATER ROLL.

APPLICATION FILED MAR. I, 1920 Patented Dec. 14 19%..

WITNESS:

A TTORNE Y.

PATENT OFFICE.

GEORGE L. BIDWELL, OF RIEGELSVILLE, PENNSYLVANIA.

BEATER-ROLL.

To all whom z't mag concern."

Be it known that I, GEORGE L. BIDWELL, a citizen of the United States of America, and a resident of Riegelsville, in the county of Bucks and State of Pennsylvania, have invented a new and useful Beater-Roll, of which the following is a specification;

My invention relates to improvement in beater rolls which are used in connection with the bed-plates or bed-knives in that type of beater engines known as Hollander engines, and consists of a shaft, a plurality of spiders secured to said shaft, and segmental plates or segments secured to said spiders, said segments having integral bars which constitute blades or knives and are adapted to operate in connection or to o operate with a bed-plate or bed-knife to reduce the stock, the joints between said segments being filled, together with such other parts and members as may be necessary or a desirable in order to render the roll compl'ete, all as hereinafter set forth.

Inasmuch as it is necessary that the beater roll be water-tight, and capable of withstanding heat and the corrosive action of the cooking and bleaching solutions to which it is subjected, and the abrasive action or wear incident to the cutting action thereof, in conjunctionor cooperation with the aforesaid bed-knife, on the hard stock in connection with which this roll is particularly designed for use, the joints between the segments of said roll are sealed with lead, said segments are preferably made of manganese steel, which is very hard and durable, not appreciably afiected by heat, that is to say, by the heat from a Hollander engine, and well able to stand up under and endure the corrosive and abrasive actions just referred to, and the ends of the beater are tightly closed. all in the manner presently to be more fully explained herein.

The primary object of my invention is to produce a beater roll, for a Hollander engine, which, while sectional, has no wood in its construction, but is made of metal throughout, possesses great powers of strength and endurance, is water-tight so that none of the contents of the engine, which is equipped with this roll, can find its way into the interior of the roll, and can be subjected to any practical degree of temperature without being affected.

A further object is to provide such a beater Specification of Letters Patent.

Patented Dec. 14, 1920.

Application filed March 1, 1920. Serial No. 362,327.

roll for a Hollander engine that is es ecially adapted for use in carrying into efl ect my new process of making pulp for paper, which pulp is made out of hard stock, such as rags, burlap, gunny, rope, jute, hemp, and sisal, fed in large pieces to said engine, an application, Serial No. 362,325, for Letters Patent of the United States on said process being filed of even date herewith.

Other objects and advantages will appear in the course of the following description.

I attain the objects and secure the advantages of my invention by the means illus trated in the accompanying drawings, in which- Figure l is an end elevation of a heater roll which embodies a practical form of my nvention; Fig. 2, a cross section through said roll; Fig. 3, an approximately central, longitudinal section through said roll, and, Fig. 4, an enlarged detail of one of the joints between two of the segmental plates which form the cylinder of the roll.

Similar reference numerals designate similar parts throughout the several views.

Referring to the drawings it will be ob served that the beater roll therein illustrated comprises, with an ordinary beater roll spindle or shaft, such as is found in a Hollander engine, two end spiders 2 and an intermediate spider 3mounted on said shaft and keyed thereto, as represented at 4, a' plurality of segments 5 secured. by bolts 6 to the peripheries of said spiders, said segments having exterior, integral bars forming knives 7 that extend longitudinally of the segments, and plates or heads 8, and so-called bangers 9.

The spiders 2 and 8 are similar to Wheels having hubs, spokes, and rims, and the spider 3 differs from the other two only in that the intermediate portions of the spokes in the middle spider are narrower than corresponding portions of the spokes of the end spiders, the outer sides of the latter spokes being flush with the outer ends of the hubs and the outer edges of the rims of said end spiders. The entire outer surfaces of the end spiders 2 can, therefore, be utilized as abutments for the end plates 6, whereby the latter may be comparatively thin, and the structure'is rendered stiffer and stronger.

The segments 5 have lapped joints 10 at their longitudinal edges, and these joints are filled with either sheet'lead or melted lead mig t consist run into said joints or between the lapped portions of said se cuts, as represented at 12 in Fi 4, so 1; at the hollow cylinder formed y the segments is water-tight. This hollow cylinder fits on to the peripheries of the spiders 2 and 3 and is secured thereon by means of the bolts 6, each segment 5 being by preference individuallybolted to said spiders. The segments 5 project at each end beyond the spider 2 at that end. The knives 7 are equidistant from each other, and are the members which, in conjunctlon with the stationary or fixed knife of the Hollander engine in which the beater roll is mounted, cut and reduce the hard stock.

The ends of the beater roll are tightly closed by means of the plates 8. Said plates are made in sections, two for each end of the roll, and they fit tightly against the end spiders 2, within the extended rims of the segmentalcylinder, and around the shaft 1, being bolted at 11 to said spiders.

The construction above described constitutes or forms a beater roll that possesses all of the advantages hereinbefore pointed out, including the special adaptability for use in my new process of making pulp from hard stock.

The bangers 9 are on the outer surfaces of the plates 8, and they are provided for the purpose of maintaining a clearance at each end of the beater roll between such end and the adjacent wall of the Hollander engine, in which said roll is located. These bangers also cut through the semi-fluid mass in the engine and prevent the same from accumulating between the ends of the roll and the adjacent sides or walls of the en ine. Said bangers are arcuate in shape, an each may consist of two ribs made integral with the plates 8 at each 'end of the roll, and arran ed so that their inner ends abut, or each of a separate piece or pieces bolted or otherwise secured to said plates.

hIn ractice the beater roll is mounted in t e plate or knife therein, tically the same manner as beater roll.

More or less change in minor details of construction of this roll may be made without departing from the spirit of my invention or exceeding the scope of what is claimed.

What I claim as m invention, and desire to secure by Letters atent, is-- 1. As an improved article of manufacture, a beater roll, for Hollander engines, comprising a shaft, spiders mounted on said shaft, and a hollow cylinder mounted on said spiders, said cylinder consistingof a and operated in practhe old type of and provided with ture,

ollander engine, adjusted to the bed-r plurality of segments having filled joints, and provided with integral knives.

2. As an improved article of manufacture, a beater roll, for Hollander engines, comprising a shaft, spiders mounted on said shaft, and a hollow cylinder mounted on saidspiders, said cylinder consisting of .a plurality of segments having lapped joints,

integral knives.

3. As an improved article of manufacture, a beater roll, for Hollander engines, comprising a shaft, spiders mounted on said shaft, and a hollow cylinder mounted on said s iders, said cylinders consisting of a plurality of segments having lapped and filled joints, and provided with integral knives.

' 4. As an improved article of manufacture, a beater roll, for Hollander engirfles, comprising a shaft, spiders mounted on said shaft, and a plurality of segments mounted on said spiders and bolted thereto, said segments forming a hollow cylinder, and being provided with integral kmves.

5. As an improved article of manufaca beater roll, for Hollander engines, comprising a shaft, spiders mounted on said shaft, and a plurality of segments mounted on-said spiders and bolted thereto, said segments forming a hollow cylinder with lapped joints, and being provided with integral knives.

6. As an improved article of manufacture, a beater roll, for Hollander engines,'comprising a shaft, spiders mounted on such shaft, and a plurality of segments mounted on said spiders and bolted thereto, said segments bein provided with integral knives, and the joints between said segments being filled.

7 As an improved article of manufacture, a heater roll, for Hollander engines, comprising a shaft, spiders mounted on said shaft, and a plurality of segments mounted on said spiders and bolted thereto, said segments forming a hollow cylinder with lapped joints, and being provided with integral knives, and said joints being filled.

8. The combination, in a beater roll, for Hollander engines, with a shaft, aspiders mounted on said shaft, and a plurality of segments mounted on said spiders and bolted thereto, said segments forming a hollow cylinder with lapped joints, and being provided with integral knives, and said joints being filled, of plates fitting around said shaft, within the rims of said cylinder, ends of the cylinder.

GEORGE L. BIDWELL.

' Witnesses:

HENRY W. GRIFFIN,

WARREN M. BROTZMAN.

to close the 

